Comparison of the Index System of Ecological Balanced Fertilization for Three Crops

作者：Xianda HOU,Hongyan ZHENG,Shuojin WANG,Shutian LIU,Zhiping HUANG,Jian DING,Changhong MI,Ling LU,Yanlin HOU

摘要：This paper conducted comparative study of the index system of ecological balanced fertilization for rice,wheat and maize by data mining method based on data of"3414 fertilizer field trials"of rice,wheat and maize by published papers from national soil testing and recommendation since 2005.The main conclusions of this paper were as follow:①since the three crops all belonged to Gramineae,they were consistent in variation trends of fertilizer utilization ratio,nutrient conversion rate,relative abundance-deficiency value of soil nutrient,optimum fertilization amount in most cases.②Due to the influence of the economic production,biological production,different water conditions in paddy field and dry farmland,length of growing season,cropping system(one year before and after the rotation)and so on,sometimes the laws of four aspects above mentioned for the three crops had opposite and gradient variations.

发文机构：Guangxi Geographical Indication Crops Research Center of Big Data Mining and Experimental Engineering Technology Guangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation Key Laboratory of Environment Change and Resources Use in Beibu Gulf（Nanning Normal University） Agro-Environmental Protection Institute

关键词：OptimumyieldOptimumfertilizationamountNutrientconversionrateFertilizerutilizationratioRelativeabundance-deficiencyvalueofsoilnutrient

分类号： S51[农业科学—作物学]